# CVE-2020-15275: malicious SVG attachment causing stored XSS vulnerability

Source: https://junglewise.ai/threats/cve-2020-15275-malicious-svg-attachment-causing-stored-xss-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2020-11-11  
License: CC BY 4.0 with a link back

CVE-2020-15275 · Severity: low · CVSS 3.1 · Published 2020-11-11

MoinMoin is a wiki engine. In MoinMoin before version 1.9.11, an attacker with write permissions can upload an SVG file that contains malicious javascript. This javascript will be executed in a user's browser when the user is viewing that SVG file on the wiki. Users are strongly advised to upgrade to a patched version. MoinMoin Wiki 1.9.11 has the necessary fixes and also contains other important fixes.

Technologies: [moin (PyPI)](https://junglewise.ai/threats/technologies/moin). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2020-15275 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2020-15275 being exploited in the wild.

**How severe is CVE-2020-15275?** Low severity, with a CVSS score of 3.1, published 11 November 2020.

**Which products and versions are affected?** moin (PyPI) ECOSYSTEM:introduced=0,fixed=1.9.11, GIT:introduced=0,fixed=31de9139d0aabc171e94032168399b4a0b2a88a2|ECOSYSTEM:introduced=0,fixed=1.9.11.

**Is there a fix for CVE-2020-15275?** Yes. moin (PyPI): upgrade to 1.9.11 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2020-15275?** Check whether you run moin (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- moin (PyPI): upgrade to 1.9.11 or later

  ```sh
  pip install "moin>=1.9.11"
  ```


## Affected products

- moin (PyPI) ECOSYSTEM:introduced=0,fixed=1.9.11, GIT:introduced=0,fixed=31de9139d0aabc171e94032168399b4a0b2a88a2|ECOSYSTEM:introduced=0,fixed=1.9.11

## Identifiers

- CVE-2020-15275
- GHSA-4q96-6xhq-ff43
- PYSEC-2020-241

## Related threats

- [PYSEC-2026-676 - MoinMoin Cross-site scripting (XSS) vulnerability in the antispam feature](https://junglewise.ai/threats/cve-2009-0312-moinmoin-cross-site-scripting-xss-vulnerability-in-the-antispam)
- [PYSEC-2026-670 - MoinMoin Multiple cross-site scripting (XSS) vulnerabilities](https://junglewise.ai/threats/cve-2009-0260-moinmoin-multiple-cross-site-scripting-xss-vulnerabilities)
- [PYSEC-2026-677 - MoinMoin Improper Access Control](https://junglewise.ai/threats/cve-2008-1099-moinmoin-improper-access-control)
- [PYSEC-2026-672 - MoinMoin Multiple cross-site scripting (XSS) vulnerabilities](https://junglewise.ai/threats/cve-2008-1098-moinmoin-multiple-cross-site-scripting-xss-vulnerabilities)
- [PYSEC-2026-668 - MoinMoin Directory traversal vulnerability](https://junglewise.ai/threats/cve-2008-0782-moinmoin-directory-traversal-vulnerability)